Buffing-machine.



S. COOPER.

BUFFSNG MACHINE.

APPLacMIoN man Amma.

Patented May 28,1918.

4 SHEETS-SHEET i.

S. COOPER.

BUFFiNG MACHINE.

APPLICATION HLED Avanza. |916.

1,267,634. Patented May 28,1918.

4 SHEETS-SHEET 3.

S. COOPER.

BUFFING MACHINE.

APPucATmN mw Aue.24.

S-SHEET 4.

@inve n rot UNITED STATES PATENT OFFICE.

SIMON COOPER, 0F NEW YORK, N. Y., ASSIGNOR TO BRASS GUQDS MANUFACTURING C0., 0F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

BUFFING-MACHINE.

Specication of Letters Patent.

Patented May 2S, 1918.

Application led August 24, 1916. Serial No. 116,590.

To all whom it may concern:

Be it known that I, SIMON COOPER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Buiing-Machines, of which the following is a specification.

This invention has for its object to provide a machine for automatically, economically and expeditiously polishing or otherwise treating objects Such as can tops and the like, and particularly objects of an irregular or unusual shape such as the elliptical form of tops now used to a large extent on toilet powder cans.

A special object is to insure the reaching of all portions of the articles by the polishing or other finishing device.

Other objects are to firmly hold the articles being worked on and to enable the setting of the machine to meet different requirements.

In the accomplishment of the foregoing and other objects, such as will later appear, I employ a rotatin turret for carrying the artic es past the po ishing or other device or devices and rovide special means for holding the artic es properly related to such device or devices. The turret is given an intermittent motion by special locking and tripping devices and the article supports are given a movement toward and away from the finishing device or devices.

The other features and details of structure will appear as the specification proceeds, attention being directed to the accompanying drawings forming part hereof, wherein I have illustrated the invention embodied in a concrete and practical form.

In the drawin Figure 1 is a top plan view of the machine with one of the swinging locking and shifting devices shown in section; Fig. 2 is a broken side view of the same, with parts shown in section; Fig. 3 is a view at right angles to the plane of Fig. 2, showing the turret portion of the machine removed from its base; Figs. 4 and 5 are plan and side views respectively of the tripping and impelling device' Figs.`

6 and 7 are end and side views of a erin of gripping mandrel or support for objects of regular or round outline; Figs. 8 and 9 are plan and side views of a special construction of wrench for raising o r lowering the turret.

Referrin now to the drawin s more in detail, 10 esignates the turret, s own here in the form of a spider, journaled on the upright shaft 11 and havin radiating arms 12 which support the ra ially extending shafts 13, said shafts being journaled at their inner ends in brackets 14 dependent from the spider arms and supported at their other ends by a track or rail 15.

These radial shafts 13, carr supports 16, adapted to receive and hold t e articles under treatment, said articles being here shown as sifter powder can tops 17 of eneral elliptical form, and said sup orts ein shown shaped to form mandre s over w ich the tops are frictionally engaged.

In the machine illustrated, the can tops are operated on at twopoints; at the first point by a rotary polishing brush indicated at 18 disposed at about a 45 degree angle to the axis of the suptporting Sha t so as to work in the an le 19 ormed at the junction of the elliptica top, and the substantially round sifter portion of the cover, and at the second point by a brush indicated at 21 disposed substantially at a right angle to the axis of the shaft so as to work on the rim or skirt portions of the can tops.

The supporting shafts are rotated to resent all sides of the articles to the brus es, in the present disclosure by a crown gear 22 on the shaft 11 engaging pinions 23 on the inner ends of the supporting shafts.

In order to bring all portions of the irregular shaped articles into the range of action of the brushes or operating devices, I pro vide cams or supports 24 on the radial shafts corresponding in outline to the shape of the articles and arranged by engagement with the track 25 to shift the article-supporting shafts toward the brush, said cams being disposed with their high points or major axes in the planes of the low points or minor axes of the articles so as to bring the low points of the articles up into the glane of the brush and similarly lower t e high points of the articles so they will be properly engaged by the brush.

he articles are further, in the machine illustrated, shifted toward and away from the brushes by mounting the mandrels or article supports on sleeves 26, slidingly keyed on the supporting shafts and grooved at 27 to receive the pins 28 of the shipper forks 29 which are pivoted on the spider arms ait 3E. These shipper forks act also in the capacity of detents, being shown provided with rollers 31 to` engage in a socket at '32 formingn keeper therefor.

The turret is given an intermittent rotation by means consisting in the present die closure `0f an arm 33 outstanding from the drivegear 2,2 and carrying an npstanding lug 34 to engage the shipper forks,- said arm carrying also a dependent pin 35 located in advance of said lug and disposed to engage a loyer fpivoted at 37 and having an arm 38 arraeii to engage the studs 39 (Fig. 2) on whic the' rollers 31 are mounted.

The upright shaft is driven by suitable mefns such asa bevel pinion 40 on the pulley sha -t 41Ine`shin with a bevel ear 42 on the `upri ht sha t, said pulley s' aft being journale in a lug 59 on the lower side of the base 47.

In Fig. 1 the trip pin 35 is shown in the act of operating the lever 36 to withdraw theidetent carried by the swinging yoke 29 from the kee er 32, this yoke serving by the connection 2 28 to retract the article supporting sleeve 26 to carry the article inward out of the sphere of action of the brush. In this movement the yoke is swung into the plane of engagement by the im elling lug 34 which, as it engages the yo e, imparts rotative movement to the same and so to the turret ,which supports it. As the turret commences to rotateand the pin 35 leaves` the triplever 36, the yoke is held from again swinging outward and out of enga ement with the driving lug 34 by the detent roll 31 coming into engagement inside a retaining track 43 which extends a distance suliicient for the turret to be carried far enough to bring the next set of articles into the planes of the brushes, at which point the neXt detent engages the keeper and the turret is thus again locked until the upright shaft com letes another revolution and then trips and rotates the turret for anotherr artrevolution. The continued rotation o the uprightshaft during the periods of rest of the turret, rotates j the article-supporting spindles, and this and the action of thepatterned supports or cams causes all portions of the can to s or other articles `to fbe presented to the rushes. v

Adjustment of the turret Lwith. respect to the brushes is rovided forrby here making the relatively siationary base 44 for the turret which` supports the tracks 15-25, with a threaded stem or shank45 Whichis surrounded, by a 'threaded sleeve 46 -andwhich has a bearing against the slidingbase 47 of the `nnrc'zhine so thatit Iilfy act in the ca.. pacity of'a nut for bodily raising and lowerin" turret. '.Ihelmanipulation of this adgjusting and sup orting sieeve is facilitated bythe`;"1"ovi,sion a special, form bf Wrench 48 encircling the sleeve and cari-ying a spring-pressed plunger 49 which takes into openings or recesses 50 provided for that urpose in the sleeve. Provision is made or securi the Wrench so as to lock the sleeve in a justed position in the form of a locking pin 51 to engage in a locking seat 52 in the base.

F or purposes of adjustment the sliding base 47 is shown rovided with longitudinal slots 58, receiving bolts 57 which secure it to a main base 60 so that when the brush 18 has become worn, the bolts 57 can be loosened and the sliding base be moved toward the brush to obtain proper pressure of the brush upon the article.

In Figs. 6 and 7 I have illustrated a special form of mandrel or support for round or regular shaped objects, wherein the Inandrcl body 53 carries a series of gripping devices or fingers 54, pivoted at 55 and thrust outwardly in position to engage an object placed over the mandrel, by springs 56. These article supports are mounted on sleeves 26, as before described, so that different forms of mandrels or article su ports may be substituted to adapt the machine for handling articles of different shape.

I claim:

1. In a machine of the character set forth, the combination of a revolving turret, radially extending rotating shafts carried by said turret, means for supporting ob'ects to be finished on said shafts and finis ing means disposed at dilferent angles in the path of movement of the objects supported on said shafts.

2. In a machine of the character set forth, the combination of a revolvin turret, radially extending rotating shaf s carried by said turret, means for supportin objects having major and minor axes on said shafts, supports on said shafts patterned after said objects and arranged With their minor axes in line with the major axes of the objects, finishing means disposed in the path of movement of said objects 'and tracks disposed in the path of movement of said patterned supports. a

3. In a machine of the character set forth, a revolving turret having radially extending arms, shafts movably supported lby said arms, means on said shafts for supporting irregular shaped objects thereon, supports on said shafts patterned after said irregular shaped objects, finishing means disposed in the path of :movementi of said objects and tracks disposed in the path of movement of said patterned supports in position to shift the supports and shafts toward said finishingmeans.

4. In a machine of the character set forth, the combination of a revolving turret, .radially extending rotating 'Shafts carried by said turret, means for supportin objects to be finished on said shafts, finis ing means 1an disposed in the path of movement of the objects supported on said shafts, and means for intermittently rotating said turret and means for temporarily locking the turret and its contained shafts in coperative relation to the finishing means aforesaid.

5. In a machine of the character described, a continuously rotating shaft, a crown gear on said shaft, a turret concentrically arranged with respect to said shaft, radially disposed shafts carried by said turret, pinions on said shafts engaging said crown gear, means for supporting objects on said shafts, tracks for supporting the outer ends of said shafts and finishing means disposed in the path of movement of said objects.

6. In a machine of the character described, a continuously rotating shaft, a crown gear on said shaft, a turret concentricall arranged with respect to said shaft, ra ially disposed shafts carried by said turret, pinions on said shafts engagin said crown gear, means for supporting o jects on said shafts, tracks for supporting the outer ends of said shafts, finishing means disposed in the path of movement of said objects, and cooperating means on said crown gear and turret for intermittently rotating said turret.

7. In a machine of the character described, a continuously rotating shaft, a crown gear on said shaft, a turret concentrically arranged with respect to said shaft, radially disposed shafts carried by said turret, pinions on said shafts engaging said crown gear, means for supporting objects on said turrets, tracks for supporting the outer ends of said shafts, finishing means disposed in the path of movement of said objects, means for temporarily locking the turret with the objects carried thereby in cooperating relation with said finishing means, and means carried by said crown gear for releasing said locking means and carrying the turret for-A ward to bring successive objects into active relation to the finishing means.

18. In a machine of the character described, a continuously rotating shaft, a crown gear on said shaft, a turret concentrically arranged with respect to said shaft, radially disposed shafts carried by said turret, pinions on said shafts engaging said crown gear, means for supporting objects on said shafts, finishing means disposed in the path of movement of said objects, means for intermittently rotatin the turret to bring the objects into the sp ere of action of said finishing means and means for shifting the outer ends of the shafts to maintain the objects supported thereby in active relation to the finishing means.

9. In a machine of the character described.

' a revolving turret, article supports on said turret, rotating brushes stationed at dierent points about said turret and. disposed to operate on different portions of the articles presented thereto and means for rotating said turret with an intermittent motion to bring the articles supported thereby successively into the spheres of action of the different brushes.

10. In a machine of the character described, a turret, equidistantly spaced article supports on said turret, detents spaced to correspond with the spacin of the article supports,a keeper arrange to be successively engaged by the detents, a rotating element arranged to release the detents from the keeper, a driving element engaging the released detent to impart movement to the turret, and a track corresponding in extent to the spacing between the detente arranged to hold the detente thus engaged by the driving element.

11. In a machine of the character described, a revolving turret, radially extending shafts carried by said turret, longitudinally displaceable article supports mounted on said shafts, means for working on the articles carried by said supports, means for rotating the turret to carry the articles past said working means, and means for displacing the article supports longitudinally on the shafts toward and away from the working means aforesaid.

12. In a machine of the character described, a revolving turret, radially extending shafts carried by said turret, longitudinally displaceable article supports mounted on said shafts, means for working on the articles carried by said supports, means for rotating the turret to carry the articles past said working means, means for displacing the article supports longitudinally on the i shafts toward and away from the working means aforesaid, and means for rotating the shafts and the article supports carried thereby.

13. In a machine of the character set forth, a turret, a shaft for rotating the same, a relatively stationary support provided with a threaded stern surrounding the shaft, a base, a threaded sleeve engaging said threaded stem and bearing on the base, a wrench encircling said sleeve and a springpressed plunger on said wrench engaging said sleeve, said sleeve having shoulders for engagement by said plunger.

14.111 a machine of the character set forth, a turret, a shaft for rotating the same, a relatively stationary support provided with a threaded stem surrounding the shaft, a base, a threaded sleeve engaging said threaded stem and bearing on the base, a wrench encircling said sleeve and a springpressed plunger on said Wrench engaging said sleeve, said sleeve having shoulders for engagement by said plunger, and a pin for locking said wrench to the base.

15. In a machine of the character described, a revolving turret, radially outstanding rotating spindles carried by said turret, and article supporting sleeves slidably engaged over the ends of said spindles.

16. In a machine of the character described, a revolving turret, radially outstanding rotating spindles carried by said turret, article supporting sleeves slidably engaged over the ends of said spindles, a mandrel body on each of said sleeves and spring-pressed gripping fingers mounted in said mandrel body.

17. In a machine of the character described, a revolving turret, radially outstanding article-supporting spindles carried by said turret, rotating wheels stationed at diierent points about the turret and disposed at different angles with respect to the articles carried by the article supports to thereby operate upon different portions of said articles and means for intermittently rotating the turret to carry the articles successively into the planes of action of said wheels.

18. In a machine of the character described, a turret, radially outstanding article-supporting shafts carried by said turret, article working means disposed about said turret, means for rotating the turret to present the articles on said article-supporting shafts to said Working means, and means for rotating said shafts as the articles supported thereby are presented to said working means.

19. In a machine of the character dcscribed, rotating article supporting means` means for Working on the article carried thereby and a slidably adjustable base for said article supporting means adjustable to- Ward and away from said Working means.

20. In a machine of the character described. a main base, article Working means in fixed relation to said main base, a sliding base on said main base adjustable with respect to said article working means, and an article supporting turret on said slidably adjustable base.

Leonesa 21. In a machine of the character set forth, the combination of a revolving turret, radially extending rotating shafts carried by said turret, means for supporting objects to be linished on said shafts, finishin means disposed in the path of movement o the objects supported on said shafts, means for temporarily locking the turret and its contained shafts in cooperative relation to the finishing means and a combined releasino and driving member adapted to release and subsequently drive the turret in its path of rotation.

22. In a machine of the character set forth, the combination of a revolving turret, radially extending rotating shafts carried by said turret, means for supporting objects to be finished on said shafts, finishing means disposed in the path of movement of the objects supported on said shafts, detente arranged adjacent each shaft, a keeper arranged to be successively engaged by the detents and a combined releasing and drivin member' adapted to release the detente an subsequently engage the same to drive the turret in its path of movement.

23. In a machine of the character set forth, the combination of a revolving turret, radially extending rotating shafts carried by said turret, means for supporting objects to be finished on said shafts, finishing means disposed in the path of movement of the objects supported on said shafts, detents ar ranged adjacent each shaft, a keeper arranged to be successively engaged by the detents, a lever associated with the keeper to withdraw the detent and a combined releasing and driving member adapted to actuate the lever thereby releasin the detent from the keeper and subsequent y engage said detent to drive the turret in its path of movement.

In testimony whereof I aiiix my signature.

SIMON COOPER.

Dupin ot this patent may be obtained for five cents each, by addressing the Commissioner o1 Patenti,

Washington, D. C." 

